EP 0436633 B1 19951115 - PYRIDINE BASE SYNTHESIS PROCESS AND CATALYST FOR SAME.
Title (en)
PYRIDINE BASE SYNTHESIS PROCESS AND CATALYST FOR SAME.
Title (de)
VERFAHREN ZUR HERSTELLUNG VON PYRIDINBASEN UND KATALYSATOR ZUR DURCHFÜHRUNG DES VERFAHRENS.
Title (fr)
PROCEDE DE SYNTHESE A BASE DE PYRIDINE ET CATALYSEUR PREVU A CET EFFET.
Publication
Application
Priority
- US 8904289 W 19890929
- US 25280888 A 19880930
Abstract (en)
[origin: WO9003366A1] An improved base synthesis process and catalyst for the preparation of pyridine or its alkylpyridine derivatives involving the catalytic reaction of one or more aldehydes and/or ketones containing from one to about five carbon atoms, with at least one reactant having more than one carbon atom, with ammonia in the gas phase. The improved catalyst comprises an effective amount of a shape-selective zeolite which has been modified by treatment with one or more metal ions or compounds of tungsten, zinc or tin. The preferred zeolite has a constraint index of about 1 to 12 and a high silica content and correspondingly low concentration of ion-exchange sites with minimal to no acidic sites present.
IPC 1-7
IPC 8 full level
B01J 29/04 (2006.01); C07B 61/00 (2006.01); C07D 213/09 (2006.01); C07D 213/10 (2006.01); C07D 213/08 (2006.01)
CPC (source: EP)
C07D 213/08 (2013.01); C07D 213/10 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 9003366 A1 19900405; AT E130294 T1 19951215; CA 1333793 C 19950103; DE 68924852 D1 19951221; DE 68924852 T2 19960321; EP 0436633 A1 19910717; EP 0436633 B1 19951115; JP 3055913 B2 20000626; JP H04500806 A 19920213
DOCDB simple family (application)
US 8904289 W 19890929; AT 89911307 T 19890929; CA 614307 A 19890928; DE 68924852 T 19890929; EP 89911307 A 19890929; JP 51056589 A 19890929